212013123297 has 4 divisors (see below), whose sum is σ = 282684164400. Its totient is φ = 141342082196.

The previous prime is 212013123239. The next prime is 212013123317. The reversal of 212013123297 is 792321310212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212013123297 - 2⁷ = 212013123169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212013123697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35335520547 + ... + 35335520552.

It is an arithmetic number, because the mean of its divisors is an integer number (70671041100).

Almost surely, 2^212013123297 is an apocalyptic number.

It is an amenable number.

212013123297 is a deficient number, since it is larger than the sum of its proper divisors (70671041103).

212013123297 is an equidigital number, since it uses as much as digits as its factorization.

212013123297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70671041102.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 212013123297 in words is "two hundred twelve billion, thirteen million, one hundred twenty-three thousand, two hundred ninety-seven".